PGA281 Overview
The PGA281 is a high-precision instrumentation amplifier with a digitally-controllable gain and signalintegrity test capability. This device uses proprietary autozeroing techniques to offer low offset voltage, near-zero offset and gain drift, excellent linearity, and nearly no 1/f noise. The PGA281 is optimized to provide an excellent mon-mode rejection of greater than 110 dB (G = 1) over a wide frequency range.
PGA281 Key Features
- 234 Wide Input Range: ±15.5 V at ±18 V Supply
- Binary Gain Steps: 128 V/V to ⅛ V/V
- Additional Scaling Factor: 1 V/V and 1⅜ V/V
- Low Offset Voltage: 5 μV at G = 128
- Near-Zero Long-Term Drift of Offset Voltage
- Near-Zero Gain Drift: 0.5 ppm/°C
- Excellent Linearity: 1.5 ppm
- Excellent CMRR: 140 dB
- High Input Impedance
- Very Low 1/f Noise